CVE-2009-3890
Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions.php in WordPress before 2.8.6, when a certain configuration of the mod_mime module in the Apache HTTP Server is enabled, allows remote authenticated users…
Does this matter?
A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 8.4%. Treat it as high on anything reachable from the internet.
Description
Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions.php in WordPress before 2.8.6, when a certain configuration of the mod_mime module in the Apache HTTP Server is enabled, allows remote authenticated users to execute arbitrary code by posting an attachment with a multiple-extension filename, and then accessing this attachment via a direct request to a wp-content/uploads/ pathname, as demonstrated by a .php.jpg filename.
- CVSS 2.0
- 6.0 MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P
- EPSS
- 8.43% probability · 95th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 11 November 2009
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- wordpress/wordpress
- Source
- secalert@redhat.com
EPSS 8.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0142.htmlBroken Link
- http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0149.htmlBroken Link
- http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0153.htmlBroken Link
- http://core.trac.wordpress.org/ticket/11122Issue Tracking, Vendor Advisory
- http://secunia.com/advisories/37332Third Party Advisory
- http://wordpress.org/development/2009/11/wordpress-2-8-6-security-release/Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2009/11/15/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2009/11/15/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2009/11/16/1Mailing List, Third Party Advisory
- http://www.osvdb.org/59958Broken Link
- http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0142.htmlBroken Link
- http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0149.htmlBroken Link
- http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0153.htmlBroken Link
- http://core.trac.wordpress.org/ticket/11122Issue Tracking, Vendor Advisory
- http://secunia.com/advisories/37332Third Party Advisory
- http://wordpress.org/development/2009/11/wordpress-2-8-6-security-release/Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2009/11/15/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2009/11/15/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2009/11/16/1Mailing List, Third Party Advisory
- http://www.osvdb.org/59958Broken Link
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.